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R E S E A R C H A R T I C L E Open Access

Scientific dishonesty — a nationwide survey of doctoral students in Norway

Bjørn Hofmann1,2*, Anne Ingeborg Myhr3and Søren Holm1,4

Abstract

Background:The knowledge of scientific dishonesty is scarce and heterogeneous. Therefore this study investigates the experiences with and the attitudes towards various forms of scientific dishonesty among PhD-students at the medical faculties of all Norwegian universities.

Method:Anonymous questionnaire distributed to all post graduate students attending introductory PhD-courses at all medical faculties in Norway in 2010/2011. Descriptive statistics.

Results:189 of 262 questionnaires were returned (72.1%). 65% of the respondents had not, during the last year, heard or read about researchers who committed scientific dishonesty. One respondent had experienced pressure to fabricate and to falsify data, and one had experienced pressure to plagiarize data. On average 60% of the

respondents were uncertain whether their department had a written policy concerning scientific conduct. About 11% of the respondents had experienced unethical pressure concerning the order of authors during the last 12 months. 10% did not find it inappropriate to report experimental data without having conducted the experiment and 38% did not find it inappropriate to try a variety of different methods of analysis to find a statistically significant result. 13% agreed that it is acceptable to selectively omit contradictory results to expedite publication and 10% found it acceptable to falsify or fabricate data to expedite publication, if they were confident of their findings. 79% agreed that they would be willing to report misconduct to a responsible official.

Conclusion:Although there is less scientific dishonesty reported in Norway than in other countries, dishonesty is not unknown to doctoral students. Some forms of scientific misconduct are considered to be acceptable by a significant minority. There was little awareness of relevant policies for scientific conduct, but a high level of willingness to report misconduct.

Keywords:Dishonesty, Fabrication, Falsification, Plagiarism, Misconduct

Background

Scientific dishonestyfrequently refers to actions or omis- sions in connection with research, which leads to false or distorted scientific results or gives misleading infor- mation about an individual contribution to research [1-3]. Scientific dishonesty is problematic for a number of reasons. It may directly or indirectly harm vulnerable research participants. It may undermine the general trust in science and scientists, and it may cause harm if future research or therapy attempts to rely on fraudulent results.

Traditionally the norms of science are learned by wit- nessing exemplary behaviour [4]. Mentors, supervisors and institutions played a significant role in promoting such norms. This has changed significantly as the num- ber of researchers and time pressure has increased, as research has become international and interdisciplinary, as there are tight ties between academia, private indus- try, and governmental research agencies, and as there is an experienced increase in pressure for publications and achieving grants. Although only the serious cases grab the media headlines, such as the Sudbø case in Norway [5], it remains important to be aware of other types of questionable behavior that threaten the integrity of science [6,7].

* Correspondence:b.m.hofmann@medisin.uio.no

1Centre of Medical Ethics, University of Oslo, Oslo, Norway

2Department for Health, Technology and Social Sciences, University College of Gjøvik, Gjøvik, Norway

Full list of author information is available at the end of the article

© 2013 Hofmann et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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How widespread is scientific dishonesty? This is a diffi- cult question with significant methodological challenges [8], and divergent answers can be found within empirical research [9-11]. Not surprisingly there seems to be sig- nificant underreporting of dishonesty and misconduct [12,13]. A systematic review and meta-analysis [11]

showed that an average of 2% of scientists admitted ser- ious forms of misconduct (fabrication, falsification or modification of data or results) at least once. Up to 34%

admitted other questionable research practices, and in surveys asking about the behaviour of colleagues,‘admis- sion’ rates were 14% for falsification, and up to 72% for other questionable research practices. Medical/pharma- cological researchers reported misconduct more fre- quently than others, although not significantly so, and it is concluded by the author that it is likely that the result is a conservative estimate of the true prevalence of sci- entific misconduct [11]. In a Nordic context population based calculations indicate that Denmark has 1–2 cases/

million inhabitants per year, Finland 1–2 cases/million per year, and Norway 1 case/million per year [14].

It is argued that there is no clear relationship between attending courses in research ethics or mentoring and sci- entific dishonesty. Training has not been shown to be ef- fective in preventing problematic behaviour, and mentoring both increased and decreased the likelihood of problematic behaviours, depending on the kind of mentoring (research, financial, survival, personal, ethics) [15].

A study of undergraduate and postgraduate pharmacy students revealed widespread deficiencies in student knowledge of, and attitudes towards, plagiarism [16].

Many students did not perceive plagiarism as a serious issue and the use of inappropriate strategies for sourcing and acknowledging material was common. Similar results are found elsewhere [17].

Although medical students consider dishonest behav- iour to be wrong, a substantial number of students re- port that they engage in dishonest behaviour [17,18].

Students’ attitudes appear to be stable throughout the years of the study [19], and their willingness to cheat may be culturally dependent and starts before medical school [20]. The baseline knowledge of responsible con- duct of research for biomedical sciences students is shown to be inadequate and inconsistent [21].

There appear to be several motives for scientific dis- honesty: the universities’ admission requirements, the system for financing, access to scholarships [3], and the perceived need for personal progress and success.

Scientific dishonesty has been studied in the Nordic countries [22-25], but our knowledge is still limited and of medium or poor quality. One study has been carried out in Sweden, [3] but comparative knowledge is neces- sary to assess the extension of dishonesty and postgradu- ate students’attitudes towards scientific dishonesty.

What are PhD-students experiences with scientific dis- honesty, what are their attitudes towards various forms of scientific dishonesty, and what do they know about regulations and policies? These are the key questions of our survey carried out among PhD-students at medical faculties in Norway.

Methods

A two-page questionnaire combining a survey developed at the Department of Medical Ethics in Lund, Sweden [3] with a survey developed by Kalichman was applied [9,26]. Terms such as ‘scientific dishonesty’,‘plagiarism’,

‘fabrication of data’, and ‘falsification’ were given stand- ard definitions in the introduction. The questionnaire was piloted with a group of students similar to the intended respondents, and a few ambiguous statements were identified and re-written.

The participants in the study were post-graduate stu- dents being enrolled in PhD-programs at all medical fac- ulties in Norway, i.e., at the universities in Oslo, Bergen, Trondheim, and Tromsø. The questionnaires were dis- tributed to doctoral students attending basic, obligatory courses in research methodology, philosophy of science, and research ethics at the four medical faculties in Nor- way in the fall 2010 and in the winter 2011 in Tromsø and Trondheim. There were two courses in Oslo in the fall 2010, one of the courses was held in Norwegian (Oslo 1) and one in English (Oslo 2). The questionnaires were anonymous and participation was voluntary. The questionnaires were distributed and collected before any discussion of scientific misconduct had taken place in the course. Answer categories were Yes/No/Uncertain, and Strongly Disagree/Disagree/Neither Agree nor Dis- agree/Agree/Strongly Agree.

Descriptive statistics was used to find differences in post graduate students’ attitudes towards and experi- ences with scientific dishonesty. Categorical variables were compared using the Studentttest, Fisher exact test, Mann–Whitney test (p < 0.05 was considered significant).

Answers were not traceable to participants. The pro- ject is registered at the Norwegian Social Science Data Service, overseeing privacy and data protection accord- ing to the Personal Data Act.

Results

The total number of questionnaires distributed and returned at the various universities, together with the participants’answers to questions about academic back- ground is displayed in Table 1. 262 questionnaires were distributed, of which 189 were returned, giving an over- all response rate of 72.1%. The doctoral candidates’

voluntary participation and anonymity were emphasised in the covering letter and when handing out the questionnaires.

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The response rate varied greatly between the five Norwegian universities—from about 51% (Trondheim) to 98% (Oslo). Most of the respondents had taken their undergraduate studies in Norway (72%), except for the course in Oslo given in English (Oslo 2) where 53% of the respondents had taken their undergraduate studies outside of Norway.

The largest group of respondents were doing clinical research (45%), and 29% were doing basic research. 62%

and 11% of the respondents had been a doctoral student less than one year and more than two years respectively.

On average, the respondents in Tromsø had been doc- toral students longer compared to respondents from the other universities.

59% of the respondents had attended lectures or courses in science ethics as part of their undergraduate studies while 31% had not.

The pilot study was carried out in Oslo including 26 respondents with a response rate of 55,3%.

To the questions about the experience of scientific dis- honesty and other unethical behaviour in connection with research during the previous 12 months, on average 23% of the respondents answered that they had heard or read about researchers who had cheated (nationally or internationally), 65% had not heard about this, and 12%

were uncertain. 29% had heard about fabricated data (see Table 2).

One respondent had experienced pressure to fabricate and to falsify data, and one had experienced pressure to plagiarize data, while none of the participants had felt pressure to plagiarize publications. Five respondents were uncertain if they had experienced pressure to fabri- cate data.

None of the respondents reported to have fabricated, falsified or plagiarized data or to have plagiarized publi- cations. Only one respondent was uncertain whether he

or she had plagiarized data and two were uncertain whether they had plagiarized publications.

About 11% of the respondents had experienced uneth- ical pressure concerning the order of authors on publi- cations during the last 12 months. In addition 7% stated that they didn’t know whether they have experienced such pressure. Five respondents had experienced uneth- ical pressure concerning design/method and five had experienced unethical pressure concerning results, while one had experienced harassment.

About 6% of the respondents had been affected by eth- ical consequences of scientific dishonesty, and 3% had been affected by methodological consequences of scien- tific dishonesty during the last 12 months.

60% of the respondents were uncertain whether their department had a written policy about scientific con- duct. 28% stated that their department had a written policy, and 12% that their department did not. Written policies on funding and on fabrication and falsification of data reached the highest reported awareness amongst the respondents (38%, 31%, and 31%). See Table 3.

The results on attitudes towards scientific misconduct (Table 4) show that 10% did not agree with the state- ment that it was never appropriate to report experimen- tal data that have been created without actually having conducted the experiment, and 4% did not agree that it is never appropriate to alter experimental data to make an experiment look better than it actually was.

38% did not agree with the statement that it is never appropriate to try a variety of different methods of ana- lysis until one is found that yields a result that is statisti- cally significant, and 5% did not agree that it is never appropriate to take credit for the words or writing of someone else.

12% did not agree that it is never appropriate to take credit for data generated by someone else, and 8% did Table 1 Total number of questionnaires distributed and returned, together with the participants’answers to questions about academic background

Site: Questions Bergen Oslo 1 Oslo 2 Tromsø Trondheim All in Norway All in

Sweden

Returned/distributed (n) 38/56 47/48 31/39 32/39 41/80 189/262 134/230

Response rate (%) 67,9 97,9 79,5 82,1 51,3 72,1 58,3

Undergraduate studies in Norway n (%) 27 (71) 39 (83) 15 (47) 25 (78) 31 (76) 137 (72) -

Doing Clinical/Basic/Other research 20/11/6 24/12/10 7/18/6 14/8/10 20/5/16 85/54/48 -

Years of experience: <1yr/1-2yrs/>2yrs 23/11/4 34/9/4 17/8/6 11/15/6 33/7/1 118/50/21 -

Lectures or courses in science ethics as part of undergraduate studies (Yes/No/I do not remember)

21/12/5 31/11/5 25/4/2 22/7/3 25/12/4 124/66/20 -

Obligatory course (Yes/No) YES YES YES YES YES 262/262 128/6

Obligatory exam (Yes/No) YES YES YES YES YES 262/262 91/43

Data from Sweden reproduced from Nilstun 2010.

One was returned blank (and is not counted in the response rate as it does not contribute with information).

The doctoral courses covering science ethics were obligatory at all universities in Norway, but the participation in the teaching every day was not obligatory.

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not agree that it is never appropriate to take credit for the ideas generated by someone else.

13% agreed that it is acceptable to selectively omit contradictory results to expedite publication and 10%

found it acceptable to falsify or fabricate data to expedite publication, if they were confident of their findings, and 29% agreed that it is more important that data reporting

be completely truthful in a publication than in a grant application. 13% agreed that you have an ethical obliga- tion to act if you witness someone committing research misconduct.

79% agreed they would be willing to report that mis- conduct to a responsible official, if they had witnessed a co-worker or peer committing research misconduct, and

Table 3 How many PhD-students were uncertain about whether their department had written policies (in percent)

Questions Bergen Oslo 1 Oslo 2 Tromsø Trondheim All Norway All Sweden

Does your department have a written policy about

Application for funds 63,9 44,7 48,4 62,5 53,7 54 59,2

Use of funds 63,9 36,2 41,9 65,6 61 52,9 57,7

Changes in design/method 72,2 63,8 61,3 77,4 68,3 68,3 47,3

Changes in results 77,8 59,6 71 77,4 65,9 69,4 43,1

Fabrication of data 75 38,3 48,4 71 61 57,5 44,6

Falsification of data 75 38,3 48,4 71 61 57,5 43,8

Ordering of authors 72,2 38,3 54,8 75 63,4 59,4 50,8

Plagiarism of others 75 46,8 48,4 71,9 53,7 58,3 49,6

Publishing the same twice 77,8 44,7 61,3 75 61 62,6 46,2

Harassment 83,3 53,2 41,9 68,8 65,9 62,6 43,8

Data from Sweden reproduced from [3].

Table 2 Answers to questions about scientific dishonesty and other unethical behaviour in connection with research (Those who have answered YES in percent)

Questions Bergen Oslo 1 Oslo 2 Tromsø Trondheim All Norway All Sweden

Have you, nationally or internationally, heard about anyone who during the last 12 months that has

Fabricated data 21,1 28,3 33,3 36,7 29,3 29,2 29

Falsified data 18,4 23,9 23,3 30 24,4 23,8 31,8

Plagiarised data 13,2 19,6 20 23,3 29,3 21,1 24,2

Plagiarised publications 5,3 17,4 16,1 31,3 29,3 19,7 -

Have you yourself during the last 12 months been the object of pressure to

Fabricate data 0 2,1 0 0 0 0,5 0

Falsify data 0 2,1 0 0 0 0,5 5,4

Plagiarise data 0 0 3,2 0 0 0,5 0

Plagiarise publications 0 0 0 0 0 0 -

Have you during the last 12 months been exposed to unethical pressure concerning

Ordering of authors 13,2 8,7 12,9 12,5 7,3 10,6 8,5

Design/method 0 2,2 6,5 3,1 2,4 2,7 3,1

Results 0 0 12,9 0 2,4 2,7 0,8

Harassment 0 0 0 3,1 0 0,5 0,8

Have you during the last 12 months been affected by any consequences of scientific dishonesty

Ethical 0 6,5 3,2 12,5 7,3 5,9 0

Legal 0 0 3,2 3,1 0 1,1 0

Methodological 0 4,3 0 3,1 7,3 3,2 -

Any other aspect 2,6 4,3 3,2 0 4,9 3,2 0

Data from Sweden reproduced from Nilstun 2010.

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75% agreed that they would be willing to report misconduct to a responsible official if they had witnessed a supervisor or principal investigator committing research misconduct.

46% agreed that all co-authors must equally share in the blame if fabricated data are discovered in a published paper, and 29% agreed that all co-authors must receive the same punishment if fabricated data are discovered in a published paper.

There were some differences between the universities.

E.g., only half of the PhD-students in Oslo disagreed that it was never appropriate to try a variety of different methods of analysis until one is found that yields a result that is statistically significant. More PhD-students at the course in English in Oslo (Oslo 2) than the average found it acceptable to selectively omit contradictory results to expedite publication if they were confident of their findings. Fewer PhD-students at Oslo 1 and more in Bergen agreed that all co-authors must equally share in the blame if fabricated data are discovered in a pub- lished paper than the average. Fewer of the PhD- students in Trondheim agreed that it is more important that data reporting be completely truthful in a publica- tion than in a grant application than the average. In Tromsø fewer respondents than the average reported

that it is never appropriate to try a variety of different methods of analysis until one is found that yields a result that is statistically significant. More PhD-students with undergraduate studies outside Norway answered that they had been exposed to unethical pressure concerning results during the last 12 months than those who had studied in Norway (p = 0.045, Fischer’s exact test), and that they were uncertain whether they had been exposed to unethical pressure concerning harassment (p = 0.02, Fischer’s exact test). The PhD-students with undergradu- ate studies outside Norway differed also from those that had studied in Norway in that they found it more ac- ceptable to selectively omit contradictory results to ex- pedite publication if they were confident of their findings (p = 0.008, Mann–Whitney).

Discussion

The findings show that scientific dishonesty is not un- known to Norwegian doctoral students and that they found some actions acceptable which are considered to be misconduct in the science ethics literature. There was little awareness of relevant policies for scientific conduct, but a high level of willingness to report misconduct.

Table 4 Proportion who answer that theystrongly agreeoragreewith claims about actions and behavior in scientific research given in percent

Questions Bergen Oslo 1 Oslo 2 Tromsø Trondheim All

Norway It is never appropriate to report experimental data that have been created without

actually having conducted the experiment.

94,7 91,1 83,3 93,8 87,5 90,3

It is never appropriate to alter experimental data to make an experiment look better than it actually was.

100 93,5 90,3 100 97,5 96,3

It is never appropriate to try a variety of different methods of analysis until one is found that yields a result that is statistically significant.

68,4 47,8 51,6 73,3 71,8 62

It is never appropriate to take credit for the words or writing of someone else. 91,9 91,3 96,8 100 97,5 95,2 It is never appropriate to take credit for the data generated by someone else. 81,6 82,2 90,3 93,5 95 88,1 It is never appropriate to take credit for the ideas generated by someone else. 92,1 84,4 96,7 96,9 92,3 91,8 If you were confident of your findings, it is acceptable to selectively omit contradictory

results to expedite publication.

8,1 14,3 23,3 12,9 7,7 12,8

If you were confident of your findings, it is acceptable to falsify or fabricate data to expedite publication.

2,6 17,8 6,5 13,3 10 10,3

It is more important that data reporting be completely truthful in a publication than in a grant application.

28,9 38,6 30 36,7 12,8 29,3

If you witness someone committing research misconduct, you have an ethical obligation to act.

81,6 80,4 96,8 87,1 92,5 87,1

If you had witnessed a co-worker or peer committing research misconduct, you would be willing to report that misconduct to a responsible official.

78,9 78,3 80,6 80,6 77,5 79

If you had witnessed a supervisor or principal investigator committing research misconduct, you would be willing to report that misconduct to a responsible official.

71,1 75,6 80 67,7 77,5 74,5

If fabricated data are discovered in a published paper, all co-authors must equally share in the blame.

60,5 28,3 51,6 48,4 45 45,7

If fabricated data are discovered in a published paper, all co-authors must receive the same punishment.

39,5 15,2 38,7 30 25,6 28,8

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Awareness of policies

Many of the respondents were unaware of their depart- ments’ policies concerning scientific conduct. The rea- son for this may be due to organizational distances between science ethics policy makers and researchers (and perhaps even more research students), and indi- cates that communication about such policies needs to be improved and implemented better in order to work as intended. Another reason may be that many scientists are uncomfortable to talk about research misconduct and reluctant to act when they see it [27]. If this is so, there is an urgent need to enhance awareness, proce- dures and measures [28]. Moreover, as recognized by Nilstun [3], there are two interpretations of those doc- toral students who were uncertain about whether there existed a policy at their department:“The first interpret- ation is that the respondents are certain that a policy exists, but they are uncertain about what it prescribes.

The second interpretation is that the respondents are uncertain as to whether or not a policy exists at all”. As Nilstun and colleagues point out, both interpretations raise challenges to present policies.

The Sudbø case can explain the difference between the results in Norway and Sweden. Moreover, the Uni- versity of Oslo elaborated and put great emphasis on ethical guidelines at all of its faculties. This was not done in the same manner at the other universities in Norway, who do not have specific guidelines or policies, but who refer to national legislation.

Pressure and reporting

About 11% of the respondents in Norway had experi- enced unethical pressure concerning the order of authors. In addition 7% answered that they don’t know whether they have experienced unethical pres- sure concerning the order of authors. It may well be that these 7% have experienced some kind of pres- sure, but were unsure whether this experience quali- fied for the label “unethical” or not. If you haven’t experienced the order of authors as an issue at all, then you would probably answer “No” rather than

“Don’t know”. Combined this means as much as 18%

may have experienced unethical pressure concerning the order of authors.

The results also show that a considerable number of PhD-students experience pressure towards other kinds of scientific dishonesty, which is worrying. It indicates that scientific dishonesty has to be further addressed at an organizational level and not only at the level of the individual researcher [17].

More positive is that most participants state that they would report scientific misconduct if they experi- enced it.

Comparison with other surveys

Our results are in accordance with the results from the Swedish study [3]. This may be because the cultural dif- ferences between the Scandinavian countries are small, because there is extensive scientific collaboration and exchange between the countries, and because the educa- tional system is similar. The results tentatively indicate less scientific dishonesty in Norway than in other coun- tries [9,11]. This counters previous results from Norway, showing that 22% of 274 medical scientists knew about cases of serious misconduct, 9% had themselves contrib- uted to one or more incidents of misconduct, and 3% of the respondents were aware of falsification or fabrication of data [29]. However, the Swedish and our survey asked about scientific dishonesty specifically within the last 12 months, whereas other studies were less specific and did not have this time restraint. If respondents have answered with a view to the last 12 months in our study (and in the study of Nilstun et al.) then our results should be expected to be lower than in studies reporting what is essentially a life time prevalence rate, which from a scientist’s perspective is considerably more than 12 months.

No participants in this study reported that they had fabricated, falsified or plagiarized data or plagiarized publications, while four persons in the Swedish survey reported fabrication or falsification of data [3]. However, three persons in the Norwegian study were uncertain whether they had plagiarized data or publications (com- pared to three persons who were uncertain about pla- giarizing data in the Swedish survey). The low rates are in line with previous studies [30,31], but it may of course be that participants are cautious concerning reporting scientific dishonesty to a study performed by researchers at their faculty who teach science ethics, even when the answers are anonymous. Hence, the method may not be adequate to reveal scientific dishonesty, or the presup- position that we only discover the top of the iceberg [27]

may be wrong. However, the low rates and the ‘unsure’

answers to whether respondents had falsified or plagi- arised data fits well with a lax conception of scientific dishonesty. People with a lax conception of falsification or plagiarism, will not report to have falsified or plagiar- ized data in the same situation where others would have reported to have done so or that they were unsure.

When comparing with other countries it is also worth noting that the Nordic countries define scientific dishon- esty slightly differently [23]. The current Swedish guide- lines for judging alleged scientific fraud state that the state of affairs—not the intention—is important [32]

whereas intentions are relevant in Norway, e.g., for the assessment of the severity of the misconduct [31].

Although results from studies with undergraduate stu- dents from various parts of the world are relevant [33-35],

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it may be challenging to compare them to results from PhD-students.

Types of misconduct

A relatively large proportion of the respondents found some actions acceptable which are considered to be mis- conduct in the science ethics literature. E.g., responses from 11 of the 189 respondents (5,8%) indicate that they think it can be appropriate to report experimental data that have been created without actually having con- ducted the experiment and 20 respondents (10,6%) indi- cated that it is appropriate to try a variety of different methods of analysis until one is found that yields a result that is statistically significant. 23 participants (12,2%) agreed that it is acceptable to selectively omit contradict- ory results to expedite publication and 19 (10,1%) found it acceptable to falsify or fabricate data to expedite publi- cation, if they were confident of their findings. This cor- responds with other studies [6,7,15].

At the same time most of the participants would re- port research misconduct if they witnessed it, even if it was committed by the principal investigator or their supervisor. Whether they would do so in actual cases, we do not know, but it is interesting that the respon- dents appear to have rather lax conceptions of scientific misconduct, but that they are willing to report it if they saw it. The reason for this may be that revealing mis- conduct, such as in the Sudbø case, can be meriting.

There is hence no necessary connection between will- ingness to report misconduct and a strict conception of misconduct.

In Norway about 6% of the respondents had been affected by ethical consequences of scientific dishonesty, and 3% by methodological consequences of scientific dishonesty in the last 12 months, compared to none in Sweden. The reason for this may be that some large re- search projects in Norway were stopped or altered re- cently due to scientific dishonesty, which had severe consequences for the PhD-students on these projects.

The results underscore the necessity for efficient mea- sures to reduce misconduct. However, the effectiveness of the organisational procedures for reducing miscon- duct has been reported to be lower in medical centres than in other settings [36]. Training and attending courses may not be the only or the best way to go [8].

Supervisors and principal investigators may need more awareness [6,37], as higher incidents of misconduct has been observed among mid-career scientists who often are supervisors for PhD candidates.

Methodological limitations

There are methodological limitations in relation to the questionnaire. No validated questionnaires were avail- able, but a questionnaire that had previously been

applied (and published) was used in order to enable direct comparison. The face validity of the Swedish questionnaire was tested and our pilot study resulted in an improved survey introduction and some add- itional questions. Ideally we would have made a more thorough validation of the questionnaire and its reli- ability, for instance through a test re-test procedure.

However, the setting with the PhD-courses does not easily permit this. It appears to be an advantage to our study that we compare the respondents’ reported actions with their attitudes as which was not done in the Swedish study. The response rate in our study is higher than in the Swedish study (71.2% versus 58%).

We obtained the highest response rate when time was allocated to filling in the form. Longer time between handing out and handing in the form resulted in lower response rate.

Although there are reasons to believe that at least some PhD-students have cheated before (during their undergraduate studies), there appear to be cultural dif- ferences in attitudes to teaching [20]. For example it has been reported that at the University of Oslo several of the students at previous PhD-courses have been caught in copying at exams (even when signing a written state- ment concerning referencing and plagiarism) [38]. It turned out that most of these students were trained in countries with different scientific norms. Our study did not reveal great difference between those attending the English-speaking course and the Norwegian-speaking course in Oslo (Oslo 1). The only question where there was a noteworthy difference was whether the respondent found it acceptable to selectively omit contradictory results to expedite publication if they were confident of their findings, where 23% of the participants at the English-speaking course (Oslo 2) agreed, compared to 14% of the participants at the Norwegian-speaking course (Oslo 1) and 13% in all Norway.

Although our study showed some substantial differ- ences between the PhD-students who had their undergraduate studies in and outside Norway, this is not beyond what one could expect to find by pure randomness.

Although it is argued that ethics training and mentor- ing is not effective in preventing scientific dishonesty [15], and that dishonesty may be related to personality traits [39], there is a wide range of strategies to avoid scientific dishonesty in medical research available [40].

Moreover, important measures to avoid and reveal scien- tific dishonesty are taken by associations of journals, such as World Association of Medical Editors (WAME), Council of Science Editors (CSE), European Association of` Science Editors (EASE), and Committee on Publication Ethics (COPE). More research is needed to find the most effective measures to reduce scientific dishonesty.

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Conclusion

The survey shows that scientific dishonesty is not un- known to PhD students in Norway. Very few stated that they were exposed to pressure to fabricate, falsify, or pla- giarise data, while pressure put upon post graduate stu- dents regarding the order of authors was more common.

Some forms of scientific misconduct were considered to be acceptable by a substantial minority. e.g., almost two of five respondents found data fishing acceptable. There was little awareness of relevant policies for scientific con- duct, but a high level of willingness to report misconduct.

With the intention to build more awareness and improved attitudes towards various forms of scientific dishonesty our suggestions are:

Increase the quality of teaching, use cases, focus on grey areas, and communicate the norms of good scientific practice repeatedly and in a variety of settings.

Provide better training for supervisors and ensure that they have the appropriate knowledge and promote attitudes.

Clarify institutional policies towards scientific dishonesty and communicate them more effectively.

Competing interests

All authors are involved in teaching science ethics to PhD-students.

Authorscontributions

Søren Holm (SH) and Bjørn Hofmann (BH) elaborated the questionnaire which was revised by all authors. All authors participated in data collection.

BH performed data analysis and developed the first draft of the manuscript.

All authors contributed significantly to the manuscript and its revision and have approved the final version.

Acknowledgement

We are most thankful to Roger Strand at the University of Bergen and Berge Solberg at the University of Science and Technology in Trondheim for contributions to elaborating the questionnaire, and to Berge Solberg and Trond Riise at the University of Bergen for distributing and retrieving questionnaires in Trondheim and Bergen respectively. We are also grateful to Berge Solberg for valuable comments to earlier drafts of the manuscript and to Professor Magne Thoresen at the University of Oslo with some of the statistics.

Author details

1Centre of Medical Ethics, University of Oslo, Oslo, Norway.2Department for Health, Technology and Social Sciences, University College of Gjøvik, Gjøvik, Norway.3Genøk-Centre for Biosafety, The Science Park, Tromsø and Faculty of Health Sciences, University of Tromsø, Tromso, Norway.4Centre for Social Ethics and Policy, School of Law, University of Manchester, Manchester, UK.

Received: 24 September 2012 Accepted: 31 December 2012 Published: 5 January 2013

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doi:10.1186/1472-6939-14-3

Cite this article as:Hofmannet al.:Scientific dishonesty—a nationwide survey of doctoral students in Norway.BMC Medical Ethics201314:3.

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